Pull out your measuring cups, get yourself a simple kitchen scale—and measure out individual servings of your favorite healthy snacks (whole-grain crackers, nuts, etc.) to pack up in reusable containers or small zip-top bags. You’ll keep a cap on portion sizes and avoid the cost markup that’s tacked on to those small packaged snacks. For a super-affordable and waist-conscious snack, make homemade popcorn your go-to snack. Popcorn kernels don’t cost much and you can air-pop them in the microwave—just put 2 tablespoons of popcorn kernels in a brown paper lunch bag, fold over several times to seal and cook it in the microwave for a couple minutes (or less…as with other microwave popcorn, just wait until you hear the pops start to get less frequent). Three cups of popped popcorn contains 3 grams of fiber and just 105 calories—provided you don’t add butter—and it’s a whole grain!